Mold.



1. P. URBAN.

MOLD.

- APPLICATION FILED OCT. 22, 1914.

1 1 5 1 ,3Q9 Patented Aug. 24, 1915.

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J. P. URBAN.

MOLD.

APPLICATION FILED OCT. 22, I914.

Patented Aug. 24, 1915.

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JOSEPH P. URBAN, OF DETROIT, MICHIGAN, ASSIGNOR OF ONE-II aLIE T DETROIT CONCRETE RECEPTACLE CO., OF DETROIT, MICHIGAN, A CORPORATION OF MICHIGAN.

MOLD.

Application filed October 22, 1914.

To all whom it may concern Be it known that I, JOSEPH P. URBAN, a citizen of the United States of America, residing at Detroit, in the county of l/Vayne and State of Michigan, have invented certain new and useful Improvements in Molds, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to molds for manufacturing garbage, ash and waste receptacles from cementitious material, and more particularly to a mold that can be advantageously used for making receptacles similar to that disclosed by Patent No. 956458, granted April 26, 1910.

In this patent there is disclosed rectangular concrete receptacles having a metallic hinged top lid and a metallic hinged end lid or gate and it is in such a receptacle that garbage can be placed and maintained sanitary, irrespective of climatic conditions. In the production of this type of receptacle it is essential that a knock down mold be employed and provision made whereby the parts of the mold can be assembled to provide a durable and rigid structure when set up, on account of some of the receptacles being of large size and considerable weight.

It is further necessary when molding a concrete receptacle that provision be made for attaching the metallic lids or gates whereby they can be easily manipulated particularly when the receptacle is built in a wall or fence with one end of the receptacle opening at one side of the wall and the opposite end of the receptacle at the opposite side of the wall. WVith these ends in view, I have devised a novel collapsible and'invertible mold wherein the parts are constructed with a view to reducing the cost of manufacture and at the same time retain the features by which accuracy, safety, durability, sinr plicity and ease of assembling are secured,

ii such features in the mold permitting of receetacles being expeditiously and economically produced.

With the above and other objects in view, the invention resides in a novel construc tion, combination and arrangement of parts to be hereinafter specifically described and then claimed, and reference will now be had to the drawings, wherein- Figure 1 is a longitudinal sectional view of a mold in accordance with this invention;

Specification of Letters Patent.

Patented Aug. 2a, 1915.

Serial No. 867,969.

Fig. 2 is a horizontal sectional view of the same; Fig. 3 is a cross sectional view of the mold; .Fig. 4 is a perspective View of a connection for the side walls of a core of the mold; Fig. 5 is a perspective view of the article produced by the mold; Fig. 6 is a side elevation of the mold in position to be inverted; Fig. 7 is a plan of the mold; Fig. 8 is an end view of the same; and Fig. 9 is a side elevation of the article partly broken away and partly in section, illustrating the top lid thereof.

In describing my invention by aid of the views above referred to, I desire to point out that I intend the same as merely illustrative as an example whereby my invention may be applied in practice, and I do not care to confine myself to the specific construction and arrangement of parts shown.

A mold in accordance with this invention comprises a base plate 1 that is rectangular in plan and has the edges thereof bound by a metallic strap 2. The base plate 1, at the ends thereof, has dowel pin openings 3 and centrally of said plate is a transverse cleat 4 and a yoke 5. The bottom of the base plate 1 has transverse straps 6 with the ends thereof protruding from the side edges of the base plate 1 and slotted, for a purpose that will hereinafter appear. It is preferable to arrange the base plate 1 upon blocks or cleats 7 for maintaining the same elevated to facilitate assembling mold walls and other elements thereon.

Mounted upon the base plate 1 are longitudinal mold walls 8 and 9 and between these longitudinal walls are end walls 10 and 11. The walls 8, 9 and 10 are vertically disposed and the wall 11 is inclined at an obtuse angle to the base plate 1. The walls 8, 9 and 10 are preferably constructed of wood and metal in the form of frames having the sections or timbers thereof connected by metallic plates 13. These plates form the inner sides of the wall and said plates have the vertical and bottom edges thereof bent or flanged, as at 141 to close the joints between the walls and the base plate 1, also to round off the edges of the article produced in the mold.

The inclined end wall 11 has a'rectan'gular opening and hinged or otherwise connected to the lower wall of said opening are hooks 16. The upper inner edge of the wall 11 has a transverse cleat 17 that provides the article produced by the mold with a beveled lower edge 18, as shown in Figs. 5 and 9. The end wall 11, adjacent the upper edge thereof, has a screw or bolt 46 which is loosely held and adapted to have the headed end thereof embedded in the article and a lock, clasp or handle attached to the outer end thereof to hold a lid or gate 19 of the article in a closed position or when a knob or handle is attached to the screw'or bolt to facilitate handling the article.

The outer-sides of the walls 8 and 9 are provided with longitudinal bars or straps 20 having a hook shaped end 21 protruding from the ends'of the longitudinal wall. Detachably mounted in the hook shaped ends 21 of the bars are transverse tie bolts or rods 22 that hold the walls 8, 9, 10 and 11 assembled upon the base plate 1. The tie rods or bolts 22 are held in position by nuts 23 and a spanner wrench can be conveniently used for tightening these nuts, as well as other nuts to be hereinafter referred to.

The longitudinal walls 8 and 9 are provided with openings to temporarily accommodate pins 24 andthese pins are adapted to form the openings 25 shown in the side walls of the article, Fig. 5, such openings accommodating connections 25 for the side flanges 26 of a metallictop plate 30.

Reference will now be had to the core which is placed in the mold. By referring to Figs. 1 and 3, it will be observed that the core is of less height than the walls 8, 9, 10 and 11 whereby the bottom of the article can be found upon the top of the core when the mold is inverted, as shown in Figs. 1 and 3. The core comprises longitudinal walls 26 arranged in parallelism with the walls 8 and 9 and abutting the end wall 11. The walls 26 are preferably made of wood and the outer sides thereof covered with metg lhc plates 27 The walls 26 engage the ends of the cleat 4 and are spaced apart thereby. In addition to this spacing means there are flanges 47 upon the inner side of the end wall 11, at the sides of the opening 15. Connecting the opposite ends of the walls 26 are sectional braces, one of which is shown in Fig. 4. Each brace comprises two hinged sections 31 and 32 having beveled confronting ends 33. The section 31 is provided with a pivoted latch 34 adapted to be swung into engagement with a keeper 35, carried by the section 32, said latch and keeper constituting means for connecting the sections 31 and 32, whereby the braces will prevent accidental collapse of the walls 26. The braces also cooperate with the ends of the walls 26 in providing a backing for a metallic end plate or wall 36 that has the lower edge thereof flanged to rest upon the base plate 1 of the mold and the upper edge thereof flanged as at 37 to rest upon the upper edgesof the longitudinal walls 26. These walls are detach ably connected by staples 38 and "hinged hooks 39. It is over one of these hooks that a hinged hook 40, carried by the inner side of the metallic end plate or wall 36, engages for maintaining the metallic end plate or wall against the braces of the core.

A metallic top plate 41 rests upon the upper edges of the walls 26 and the flange.

37 of the end plateor wall 36. The forward end of the metallic top plate 41 has an angularly disposed "portion 43 engaging a flange 44 of the end wall 11. The flange 44 is at the upper edge of the opening 15 and represents a continuation of the flanges 47. The .angularly disposed portion 43 of the metallic plate 41 also rests upon beveled edges of the longitudinal walls 26, and the angularly disposed portion 43 is adapted to produce the angularly disposed wall 45 of an article. The metallic top plate 41 has a longitudinal angle bar 42 and a central depending pivoted hook 48 adapted to engage under the yoke 5 and anchor the metallic top plate upon the longitudinal walls 26 of the core. The confronting sides of these longitudinal walls are provided with yokes 49 and adapted to engage said 'yokes are the hooks 16 of the end wall 11. The various longitudinal, transverse and vertical connections between'the metallic plates 36 and 41, the longitudinal walls 26, the end wall 11 andthe base plate 1, insure a rigid core within the walls of the mold and with all these elements assembled, as shown in Figs. 1, 2 and 3, concrete or other cementitious material can be placed in the mold. As themold is filled the concrete can be tamped, especially between the walls of the core and the walls of the mold and in the formation of the bottom of the article it is possible to install metallic reinforcements or stiffening members '50, as shown in Fig. 3. After the concrete has hardened or solidified to that extent that the article can be removed and seasoned, the mold is ready to be inverted from the position shown in Figs. 1, 2 and 3, and for this purpose, I employ a noveldevice which has been shown in Figs. 7 and 8. This devicecomprises cross braces 51 having the lower ends thereof provided with dowel pins 52 to engage in the openings 3 of the base plate 1. Hinged to the upper ends of the cross braces 51 are end pieces 53 provided with transverse bars or straps 54 adapted tovertically alin'e with the bars I or straps 6 of the base plate 1, whereby belts or tie rods 55, similar to the bolts or tie rods 22 can be employed for clamping the endment with the horses 56, the mold can be inverted, suitable blocks placed under the same, the horses 56 removed, and then all of the parts of the mold collapsed. lhe horses 56 can be made of structural steel and the parts thereof assembled whereby the horses can be knocked down for shipping purposes.

From the foregoing it will be observed that the mold comprises outer walls assembled upon the base plate with one of the walls inclined and provided with an opening whereby easy access can be had to the hollow core. The various hooks, staples and yokes constitute means within the hollow core for anchoring the same upon the base plate in a spaced relation to some of the outer walls, and it is through the medium of such means that the mold can be easily and quickly knocked down.

What I claim is 1. In an invertible mold, a base plate, i hollow core thereon, outer walls upon said base plate with one-of said walls forming a wall of said core and provided with an opening whereby easy access can be had to the interior of said core, means connecting the top of said core to said base plate, and means adapted to hold outer walls in engagement with said base plate when said mold is inverted.

2. In an invertible mold, a base plate,

outer walls assembled thereon with one of said walls inclined and provided with an opening, a hollow core upon said base plate adjoining the inclined outer wall and having walls spaced from the remainder of said outer walls, a hook connecting two of the core walls, a hook connecting an end wall of said core to said hook, means carried by the top of said core and engaging said base plate for retaining said core in engagement with said base plate and the inclined outer wall, and means for maintaining said outer walls assembled upon said base plate.

8. In an invertible mold, a base plate, outer walls assembled thereon with one of said walls inclined and provided with an opening, a hollow core upon said base plate adjoining the inclined outer wall and having walls spaced from the remainder of said outer walls, means carried by the top of said core and engaging said base plate for retaining said core in engagement with said base plate and the inclined outer wall, and means for maintaining said outer walls assembled upon said base plate.

In testimony whereof I afiiX my signature in presence of two witnesses.

JOSEPH P. URBAN.

Witnesses:

KARL H. BUTLER, ANNA M. Donn.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

